InChI=1/C20H27N3O2/c1-13-17(22-25-18(13)21)14-9-11-23(12-10-14)19(24)15-5-7-16(8-6-15)20(2,3)4/h5-8,14H,9-12,21H2,1-4H3 8DD1B13F5F3ADDF0